It's 2014, and the soldier of the future returns to encounter a new and more imminent threat along the recently completed wall on the US/Mexico border. The Ghosts are more powerful with an upgraded Integrated Warfighter System, but will have only 72 hours to assess the threat and stop the rebels from reaching U.S. soil. With a border that's 1,900 miles long and an enemy that doesn't play by the rules, this is a job for the U.S. military's most elite fighting unit.

Ubisoft has announced a new Ghost Recon game, under the working name Ghost Recon 4.
The release date has been targeted for the financial year of 2009-2010. Which basically means anywhere from March 2009 through February 2010.